| Patents for C02F 101 - Nature of the contaminant (7,129) |
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| 03/25/1998 | CN1176938A Electrolytic hydrogen dissolved water, and method and apparatus of production thereof |
| 03/04/1998 | EP0826636A1 Water containing dissolved electrolytic hydrogen, and method and apparatus of production thereof |
| 02/04/1998 | EP0648193B1 Process and system for purifying waste water |
| 01/22/1998 | WO1998002259A1 Method for cleaning capillary and porous media contaminated by crude oil and petroleum products |
| 01/22/1998 | WO1998002258A1 Method for cleaning capillary and porous media contaminated by crude oil and petroleum products |
| 01/21/1998 | EP0819649A1 Photocatalytic method for treatment of contaminated water |
| 12/29/1997 | EP0673350B1 Metal accumulation |
| 12/17/1997 | EP0641252B1 Compositions and processes for removing, separating and concentrating desired ions from solutions |
| 12/09/1997 | US5695719 Self-contained, immersible |
| 09/09/1997 | US5665245 By negative pressure generated by jet pump; water treatment |
| 08/14/1997 | WO1997029055A1 Process for the treatment of water containing heavy metal ions |
| 08/07/1997 | WO1997028094A1 Process for the thoroughgoing aerobic biological purification of waste water |
| 08/07/1997 | DE19603690A1 Verfahren zur aeroben, weitergehenden biologischen Reinigung von Abwässern A method for aerobic, further biological purification of waste waters |
| 08/06/1997 | EP0580595B1 Aqueous phase removal of nitrogen from nitrogen compounds |
| 07/23/1997 | EP0784597A2 Process and arrangement for biodegrading pollutants in water |
| 07/09/1997 | EP0478583B2 Process and device for treating polluted fluids |
| 06/10/1997 | US5637220 Oxidizing sulfides to sulfur using sulfide-oxidizing bacteria |
| 05/28/1997 | CN1150792A Anaerobic removal of sulphur compounds from waste water |
| 05/06/1997 | US5626765 Method for adsorbing and separating heavy metal elements by using a tannin adsorbent |
| 04/16/1997 | CN1147801A Process for removing polluting material from water or wet solid matter |
| 04/09/1997 | EP0766650A1 Anaerobic removal of sulphur compounds from waste water |
| 04/02/1997 | EP0765332A1 Process for removing waste pox alendronate and its by-products |
| 04/02/1997 | EP0681561A4 Wastewater treatment process and apparatus. |
| 04/01/1997 | US5616240 Device for sewage clarification |
| 03/11/1997 | US5609768 Process for separating and/or recovering hydrocarbon oils from water using biodegradable absorbent sponges |
| 02/26/1997 | EP0759012A1 Process for removing polluting material from water or wet solid matter |
| 02/26/1997 | CN1143942A Process and device for simultaneous biological elimination of phosphorus and nitrogen from waste water |
| 02/19/1997 | CN1143336A Rectangular floatation plant |
| 02/04/1997 | US5599452 Wastewater treatment method |
| 02/04/1997 | US5599272 Method for the manufacture of a solid by the mixing of hydrates of alkaline earth oxides and hydrates of heavy metal oxides |
| 01/28/1997 | US5597493 Device and method to separate the components in mixture of non-miscible liquids |
| 01/22/1997 | EP0702663B1 Process for purifying sulphide-containing waste water |
| 01/08/1997 | EP0751913A1 Process and device for simultaneous biological elimination of phosphorus and nitrogen from waste water |
| 12/25/1996 | CN1138835A Oil-absorbing article |
| 12/24/1996 | US5587142 Synergistic effect |
| 12/11/1996 | EP0746413A1 Rectangular flotation plant |
| 11/06/1996 | EP0740582A1 Oil-absorbing article |
| 10/15/1996 | US5565107 Introducing contaminated water to a packed bed of activated carbon to which an electrochemical potential is applied and to which ozone or hydrogen is fed simultaneously |
| 09/11/1996 | EP0643674B1 Process for purifying streams |
| 08/14/1996 | EP0725760A1 Perchlorate removal process |
| 08/01/1996 | WO1996022947A1 Method of removing heavy metals from water, a colloidal system for purifying water and a method of producing the said system |
| 07/30/1996 | US5540819 Electrolysis |
| 07/17/1996 | EP0471784B1 Method and composition for treating waste water |
| 06/26/1996 | CN1125432A Process for purifying sulphide-containing waste water |
| 06/18/1996 | CA2040538C Waste treatment process for alkaline waste liquid |
| 05/28/1996 | US5520811 Removing metals from water by reaction with phosphate from enzymatically cleaved polyphosphate from microorganisms |
| 05/28/1996 | US5520806 Apparatus for gas bubble flotation |
| 05/23/1996 | WO1996009987A3 Process and arrangement for biodegrading pollutants in water |
| 05/22/1996 | EP0580636B1 Catalysed hypochlorite decomposition process |
| 05/21/1996 | US5518619 Process for removing sulphur compounds from water |
| 05/01/1996 | CN1121746A Device for analyzing a fluid medium |
| 04/17/1996 | EP0706659A1 Device for analyzing a fluid medium |
| 04/09/1996 | US5505862 Subjecting to aerobic treatment following heavy medium separator and a downstream anaerobic treatment with precisely controlled circulation |
| 04/04/1996 | WO1996009987A2 Process and arrangement for biodegrading pollutants in water |
| 04/04/1996 | DE4434753A1 Verfahren und Anlage zum biologischen Abbau von Schadstoffen in wäßrigen Flüssigkeiten Process and apparatus for the biodegradation of pollutants in aqueous liquids |
| 04/02/1996 | US5504124 Process for removing unwanted material from wanted material |
| 03/27/1996 | EP0702663A1 Process for purifying sulphide-containing waste water |
| 03/20/1996 | EP0701537A1 Method for removing soluble metals from an aqueous phase |
| 03/05/1996 | US5496723 Inoculation for pollution control and culture of acinetobacter with nutrients |
| 01/16/1996 | US5484524 Wastewater treatment apparatus |
| 01/04/1996 | WO1996000191A1 Anaerobic removal of sulphur compounds from waste water |
| 01/04/1996 | CA2192575A1 Anaerobic removal of sulphur compounds from waste water |
| 01/03/1996 | EP0579711B1 Method for removing sulphur compounds from water |
| 12/27/1995 | EP0514543B1 Sewage purification apparatus |
| 12/14/1995 | WO1995033755A1 PROCESS FOR REMOVING WASTE POx, ALENDRONATE AND ITS BY-PRODUCTS |
| 12/14/1995 | CA2191772A1 Process for removing waste pox, alendronate and its by-products |
| 12/12/1995 | US5474682 Method for removing sulphur compounds from water |
| 11/28/1995 | US5470460 Apparatus for the purification of cyanide-containing waste water |
| 11/23/1995 | WO1995031402A1 Process for removing polluting material from water or wet solid matter |
| 11/15/1995 | EP0681561A1 Wastewater treatment process and apparatus |
| 10/24/1995 | US5460791 Method for adsorbing and separating heavy metal elements by using a tannin adsorbent and method of regenerating the adsorbent |
| 10/11/1995 | EP0664769A4 Process for separating a hydrophobic liquid from a liquid contaminated therewith. |
| 09/28/1995 | WO1995025697A1 Process and device for simultaneous biological elimination of phosphorus and nitrogen from waste water |
| 09/27/1995 | EP0673350A1 Metal accumulation |
| 09/26/1995 | US5453208 Oxidation of ammonium ions and organic carbon in wastewaters |
| 09/12/1995 | US5449819 Process for removing waste pox, alendronate and its by products |
| 09/12/1995 | US5449460 Process for the treatment of water containing sulphur compounds |
| 09/08/1995 | WO1995023647A1 Rectangular flotation plant |
| 09/08/1995 | EP0668246A4 Strains of acinetobacter species (bicoccum), arthrobacter species and rhodococcus species and a process using the said strains for the biological treatment of oil pollution. |
| 09/05/1995 | CA2033381C Insoluble tannin preparation process, waste treatment process employing insoluble tannin and adsorption process using tannin |
| 08/29/1995 | US5445741 Treatment with chlorine-releasing substance to partially oxidize wastes, heat treatment, oxidizing again with ozone or hydrogen peroxide, adsorption with activated carbon |
| 08/23/1995 | EP0668246A1 Strains of acinetobacter species (bicoccum), arthrobacter species and rhodococcus species and a process using the said strains for the biological treatment of oil pollution |
| 08/10/1995 | DE4407064C1 Vorrichtung zur Gasblasenflotation Apparatus for Gasblasenflotation |
| 08/02/1995 | EP0664769A1 Process for separating a hydrophobic liquid from a liquid contaminated therewith |
| 08/02/1995 | EP0494861B1 Process for treatment of water and apparatus therefor |
| 07/27/1995 | WO1995019842A1 Oil-absorbing article |
| 07/27/1995 | CA2181071A1 Oil-absorbing article |
| 06/28/1995 | EP0641292A4 Water clarifier with first filtrate isolation, improved backwashing and improved bubble generation. |
| 06/07/1995 | CN1103385A Process and apparatus for purifying streams |
| 05/31/1995 | EP0655421A1 Process for the preparation of a solid by blending hydrates of earth metal oxides and hydrates of heavy metal oxides |
| 05/27/1995 | CA2136490A1 Process for making a solid by mixing alkaline-earth metal oxyde hydrates with heavy metal oxyde hydrates |
| 05/04/1995 | WO1995011858A1 Perchlorate removal process |
| 05/03/1995 | CN1102135A Device and method to separate the components in mixtures of non-miscible liquids |
| 04/19/1995 | EP0648193A1 Process and system for purifying waste water |
| 03/22/1995 | EP0643674A1 Process and apparatus for purifying streams. |
| 03/15/1995 | CN1100068A A method for removing suspended impurities |
| 03/14/1995 | US5397476 Purification of solutions |
| 03/08/1995 | EP0641292A1 Water clarifier with first filtrate isolation, improved backwashing and improved bubble generation |
| 03/08/1995 | EP0641252A1 Compositions and processes for removing, separating and concentrating desired ions from solutions |
| 02/28/1995 | US5393428 Process for treating waste water containing chlorinated organic compounds from production of epichlorohydrin |